It has 13 separate slots (approximately 5.25" length) and 2.5 oz weight.
This mount replaces the rear sight, and is made from high grade aircraft aluminum with a black anodized finish and will give you a WEAVER/ PICATINNY 7/8" rail mounting platform for your scope, sight, or other weaver based accessories.
Easy Installation- Includes Allen Keys, Mounting Screws, Roll Pin